Kobayashi Fidget Cube - Fat Hinge
Another version of my fidget cube, http://www.thingiverse.com/thing:1269699
except this one has nice fat symmetric hinges.
Cosmetically looks a bit nicer, although the other one really does flop around smoother--and hence, more fun to play with :) This one is pretty nice too, though!
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/3cERooXEiXE
Edit: Added a flat version that might be easier for you to print!